Do you need to ground yourself when building a PC?

I plan on building my first PC soon, but whenever I watch a recent video on how to build a PC, the person never wears a wristband to ground themselves, but on older videos they always wear wristbands. So is grounding yourself a thing of the past, or is it still important to ground yourself nowadays?

I usually will discharge any static on me before starting then as long as I don't move around, static won't build up and should be safe in most environments. If you have a high-static area, best to take extra precautions.

Best to do it if not experienced, or you have surroundings that are subject to large amounts of static electricity discharge.
I usually keep hand or wrist or whatever touching bare metal parts of a grounded case.